Chess Board - Piece Recognition + Robot Control

[alex774463]

Hey guys

I am going for a big project including a robot which is moving chess pieces and can play with other people. The robot will move the pieces from underneath with an electro-magnet.

My goal is to detect when a piece is on a field and which piece exactly it is!

The last days I read a lot about past projects and I think this will be quite a challenge..

I have thought about RFID/NFC but it is difficult to implement (isolation) and I also think the magnets would disturb the signal..

I've also thought about Barcode, Color Detection, Hall-effect, Reed Sensors... but I don't really find an ideal solution.

Before I start frustrating and keep searching for more solutions, maybe someone of you has a good idea?

I have never seen a project with strain gauge. What do you think about that idea? Putting strain gauges underneath each field and modify the pieces in weight.

(I don't really like to use cameras)

[noiasca]

@alex774463

(I don't really like to use cameras)

why not?
It's 2023 and object recognition out of a video stream will work very precise.

[qubits-us]

@alex774463

The robot will move the pieces from underneath with an electro-magnet.

Knights horse jumps..
Castling be tricky too..

sorry.. ~q

[jremington]

Arduino Due Chess Robot

My chess robot has been an on-and-off hobby project which is now finally ready to show off. It has been over 7 years in the making! Since I started on the idea (originally using a Duemilanove), I see that a quite a few similar projects have been completed. However there are a few elements to my implementation which were original design objectives which (I think) still make it worthwhile: No external devices/laptops – all electronics are packaged under the board with board detection, chess eng…

[alex774463]

The fields just have to be big enough so the horse can go around. That's not a problem.

[alex774463]

Thanks! That's a nice project but there is no individual piece recognition.

[jremington]

The location identifies the piece. Computers have memory.

Putting strain gauges underneath each field and modify the pieces in weight.

With a bit of research, you will understand why this idea is unworkable.

[alex774463]

I know that computers have memory but that is not my aim. I want to identify each piece individually.

[jremington]

Your aim is perfectly clear. Forum members are telling you that your current ideas will not work, or are completely impractical to implement.

[xfpd]

@qubits-us

Knights horse jumps..
Castling be tricky too..

Maglev! : )

(or, every piece move over a little to let the horse pass)

[alex774463]

Ok thanks. Then I come to the conclusion that I will have to detect the presence of the pieces with reed or hall-effect sensors and additional I can implement computer vision for identification of each piece. Hmm

[alex774463]

I have experimented a bit during the last days. What do you guys think about the idea to color the individual pieces from the bottom and you leave a small "window" where the camera can detect from below which figure exactly it is.

I think this is easier and faster for the recognition?